Collar for stovepipes



(No Model.)

A. J. TAYLOR.

COLLAR FOR STOVEPIPES.

Patented Feb. 5, 1895.

63 v Wm Qwigbmowo MA/b.)

@ltfozwaag UNITED STATES PATENT ANDRElV J. TAYLOR, OF GLENS FALLS, NElV YORK.

COLLAR FOR STOVEPIPES.

SPECIFICATION forming part of Letters Patent No. 533,682, dated February 5,1895.

Application filed November 19 ,1894. Serial No. 529,304. (No model.)

The object of the invention is to produce an adjustable orself adjusting collar or guard,

' which shall act as a clamp to the pipe and embrace the same for a little distance, and shall center the pipe in a thimble drum, flue, or chimney pot.

Figure l is a perspective View of the collar as applied to a chimney crock, the position of the pipe being shown in dotted lines. Fig. 2 is a perspective of a broken piece of pipe with collar attached. Figs. 3 and 4 are perspectives of collar and clamping spring, showing modifications of the expansion coupling. Fig. 5 is a detail of the spring clasp on a broken section of the collar.

Spring collars for centering a stove-pipe in the thimble or crock of a chimney, ceiling, or partition are common. My construction is an improvement in devices of this character.

The thimble or chimney crock may be represented at A, any of the usual forms being used. It is desirable that the stove-pipe entering or passing through this crock or thimble should be centered, and held out of contact therewith. For this purpose I provide the collar B, of sheet metal, of a length to pass around the largest pipe to which it is applied. The ends of the collar B, overlap, one of the ends passing through the loop 0, which is attached to the other end, as in Fig. 3, or one end may be slotted, as at D, Fig. 4, and the slot embrace a rivet or pin E, projecting from the collar. Either form of overlapping joint permits the collar to be expanded to fit stove-pipes of various sizes.

The collar B has a number of spring clamps E attached, three of such clamps, equally spaced, being the preferred number. Each of these clamps is formed of a strip of sheet metal, bent to U or ox-bow form, as clearly shown in the drawings. One end of each U- shaped clamp is rigidly secured to the elastic collar, by a rivet or otherwise, so that one limb of the U lies snugly against a stovepipe, when the collar is applied, and extends lengthwise of said pipe. The other limb of the U-shaped clamp returns in position about parallel with the first, and is bent at nearly a right angle, the free end being split, and the extremities turned out and in, as shown, at F and G. The outward turned extension F of the clamp serves as a stop,to prevent the collar from passing too far within the crock. The inturned extension G serves as a stiffener, and limits the amount of elasticity of the clamp, by hearing against the collar when the springs are pressed together. This inturned extension may project slightly beyond the collar, as shown in some of the views, as the action is substantially the same whether the projection rests against collar or pipe. Extreme nicety of fit is not required in work of this character.

The collar being applied to a pipejoint and entered into the thimble or crock, the clamps B will hold and center the pipe in the thimble or crock, and the projections F will prevent the collar from entering too far into the crock. The elastic collar surrounds and grips the pipe, and the springs E hold the pipe in place and center it, in the thimble or crock, the collar adapting itself to the size of the pipe, so that the same collar or pipe may be used with different sizes of pipe.

The collars may be applied to both ends of a thimble, where the same is used in a floor or partition, although generally one collar will be sufficient to center and hold the pipe.

As the springs extend lengthwise of the pipe, they may be of any convenient length (preferably less than the length of the thiinble or crock) and the expansion of the springs causes them to embrace the pipe snugly, While centering the same in the thimble.

What I claim is- 1. In a stove pipe clamp and centering device, the elastic expansible collar having a plurality of U-shaped or ox-bow springs attached by one limb, the limbs of said springs extending in the direction of the length of a scribed.

pipe when the collar is applied thereto, sub- In testimony whereof I affix my signature stantially as described. in presence of two witnesses.

2. In a pipe clamping device the expansi- I T ble elastic collar having a plurality of ox-bow ANDREW TAX springs each attached to the collar at one end, the other end of the spring being split and the branches being turned respectively outward and inward, all substantially as delo lVitnesses:

CHARLES R. WHIPPLE, CHARLES F. KING. 

